Hitch or clevis



y ,1948. G. L. Ku-HL 2,444,876

HITCH 0R CLEVIS w Filed April 30, 1947 Patented July 6, 1948 v permittg. c nsiderable, qi ment s-s he-l raw-b and eisimsmhea h e- Pee .V Q muin n sv eekins mov men s 923 9; draw-bar results in the sides of 'thebe? being ns th qs hai .t e,i raw wg c me eio m sl Q iFi x. de rs itdifficuliyto cor pect anqjdisooy Referring to the dig? in n, eq ifm, 1Itds an objeet 'of jahis inventio to provide a i ch r. Ma i f nnecineihe r w-1W m, the vehicle, or obieot to be drawn oomprisii gmean susi ry ht e agemen e-f. tween seigl hiigoll or clevis ar gl thedrawshag, which means is actuated --by the draw-bait when; e edm nq AIbis ,a further object ofjuhe invention ,to .p o- I L de-a em erss e 'aa-h ich: w e sheylh a, p rpion atone :end constrgoted andarretigd t s Iq mfia to be connected to the vehicle to be drawn and e K ,911 holc ijs-Din Wa n pie havingspaced arms at its other enQ'fa draw-f l l is th s cor geet egktq mgmbeij bqnofairgctor disposed between saigil ar ii s andri IQQIISN lfll i afo its oigl er er mea ng d by, i r' r r anqmmatea hte wax us ii rmeqm thereby when said bar is pulled -upon foijmovs V o,motiheinv mien i lusi eted hey" ing idrm o ht a em i h 15 r mi eicyl dieell qre,, aw a 1 It is another objectof the invention; to p 1 'o-. ,30vide a;1hitehor clevis having a loop am s-snag adapted-to be Connectedto i the'vehio leio-bef drawn amt-having spaced arms at -it-s -ofiher--e'n d,l; a dr aw-bar of a tra.otor dispbsed-fbeizweefl sa i dfl v Im as *h i s v d s u antia y meme an -...YI19% s 1 to' the im ersiqes ofsaid a ms, a pl j e eXt endQ ""tia l ly the sei pla ing across said armsand 'd a -ba y means oon Q! lsiqs ip figmw nectingsa iqipla te anddraqisI-bar ar d 's :ai;-' to'the sides of the bar ed z x eid Pl t for sw i fl a d :arm' li Fwyd sthe s' n 'st pt id drew-be t henmela t pulle spng x f l with means, 92th, mes. tsti imore eqifis lly n, bi qt vjtheinyellrh ion r qv nov qeq fh ch r, leflscwppigfig msm erfi rmeeasallnwat n fineiez dsha i v w spa e m xms n. itsom s n ;adminea g mrou'nanmbenws posed bstw en. id arms ans? ,he ziogi s ,i t eir eiidsrivtediat ubt n e11 n 11e1 o i q nsrt idesrpi l 111 f f1 he nr zms aid.xms i ie ably diyer iigeig h utsrw ide s oas to-iorm wedgqsnplete lflxnep i. ing across said arms and draw-bar above and be-j, qw hewme. v eectiizel mean qnu fi'ng said-menses samp awe e i d means am by, s i mmanesmn. engaging said, o tgp skies,

hen Afllatterisp lfid p m I These and. other objects v and .7 adyenteges 01; theuinventionwili be fullys tsrormfli flthe" 9 owing- 'des riiioni- .mads inflamed w these arms diverge this will cause said arms tobe moved together and to be wedged very tightly against the sides ofdraw-bar l2. The more force that is exertediby-draw-bar l2fin itspullingmovement, the greater will be the force moving arms lflb together andthe tighter will be the, engagement between said arms and the sides ofdraw-bar I2. This results in a very rigid con;

nection between draw-bar l2 and member There can be no relativelongitudinal movement of arms lb and draw-bar I2 and movement in avertical plane is prevented by the plates l3 and 14. The result is thata rigid relationshipis maintained between members l0 and I2 and draw-barI2 is not banged against member ID, a connecting bolt or any otherobject to upset can be easily and quite inexpensively made and can bemade very rugged for its intended use. The device comprises few partsand can be sold at a. price :commensurate with other hitches. The devicehas been amply demonstrated in actual practice, found to be verysuccessful and v. efficient and is being commercially made.

It of course be understood that various changes may be made in the form,details, ar-

rangement and proportions of the parts, without departing from the scopeof applicants invention, which generally stated, consists in a device ycapable of .carrying out the objects above set within the scope of thisinvention to move the arms [0b. In Figs. 4 and 5 another form of thedevice is shown in which a member is provided having an end portion 20asimilar to portion Inc of member l8. Member 20 has spaced arms 2% at itsother end having innersides which are substantially parallel and betweenwhich is disposed the draw-bar i2. Plates 2|.

and 22 extend across arms 22b and bar I2 above and below the samerespectively.. A pin 23 extends between plates 21 and 22 adjacent oneend thereof and through one of the arms 20b, A filler sleeve or washer25 may surround pin 23 between plates 2! and 22. Another pin 21 ex tendsbetween plates 21 and 22adjacent theotherfv ends thereof, both pins 23and 21 having their ends riveted over the outer sides of plates 2| and22. An eccentric washer or cam 28 is jourknaled on pin 21 between plates2| and 22 and comparatively thin washers 29 of fiber or similar materialmay be disposed at either side, of mem-' ber 28. and about pin 21.Member 28 is in the form of an eccentric having its radius increasingfrom the side thereof adjacent draw-bar T2 to.-,

ward the free end of said draw-bar or toward loop 20d.

In operation when draw-bar i2 is pulled upon it will cause rotation ofmember 28, in a counterclockwise direction, as seen move the largerradius portion of member 28 toward bar 12 and this will act to wedge bari 2 between member 28 and the side of the other arm 20?). The greaterthe force in the pulling movement of bar 52, the greater will be theforce causing engagement of said 'bar with member 28 and member 20. Theresult will be that a rigid relationship will be maintained betweendrawbar l2 and member 20 so that no loose movement of 'bar 12 ispossible to cause upsetting or dis-. tortion thereof by co'ntactwithanothermember.

From the above description it will be seen that I have provided asimple, novel and ingenious clevis or hitch for connecting a tractor toa vehicle or other object to be drawn. The device acts to maintain arigid connection and relationship with the draW-bar'and the draw-bar isthus protected and; maintained in the proper form.- The'device is simpleconstruction, it

in Fig. 4. This will forth, in the parts and combinations of partsdisclosed and defined in the appended claims.

'What is claimed is: v

1. .A hitch or clevis having in combination, a member having a portionat one end adapted to be connected to a vehicle to be drawn, said memberhaving spaced arms at its other end, a drawbar of a tractor disposedbetween said arms, and means for moving said arms into tight engagementwith said draw-bar when said bar ispulled upon.

2. A hitch or clevis having in combination, a

member having a, loop at one end adapted to be connected to a vehicle tobe drawn, said member havingspaced arms at its other end, a draw-bar ofa tractor disposed between said arms, and means engaged by said draw-barand actuated thereby when the same is pulled upon for moving said armsinto tight engagement with said draw-' bar.

3. A hitch or. clevis having in combination, a member having a portionat one end adapted to be connected to a vehicle to be drawn, said memberhaving spaced, arms at its other end, a drawbar of a tractor disposedbetween said arms, a

plate extending across and between said arms,

and means carried by said plate and actuated by said draw-bar whenpulled upon for moving said member having a portion at one end adaptedto be connected to a vehicle to be drawn, said memberhaving spaced armsat its other end, a-drawbar of a tractor disposed between said-arms, aplate extending across and between said arms,

means connecting said plate to said draw-bar and means carried by saidplate for moving said arms into tight engagement with said draw-bar whenthe latter is pulled upon.

5. ,A hitch or clevis having in combination, a

, member. having a portion at one end adapted to be connected to a,vehicle to be drawn, said member having spaced arms at its other end, 2.draw bar disposed between said arms and having sides substantiallyparallel to the inner sides of said arms, said arms having divergingouter sides to thus form wedges, a plate extending across and betweensaid arms and across said draw-bar, means connecting said plate to saiddraw-bar, and means carried by said plate engaging said outer sides tomove said arms toward each other togrip said draw-bar when the latter isupon.

6. A hitch or clevis having in combination, a

pulled member having a, portion in one end adapted to be connected to avehicle to be drawn and having" spaced arms at its other end, a.draw-bar of a tractor disposed between said arms and in substantiallythe same plane as said arms, plates extending across said arms anddraw-bar above and below the same, means connecting said plates to saiddraw-bar, and means carried by'said plates between the same and engagingthe outer sides of said arms for moving said arms together and pressingthe same against said draw-bar when the latter is pulled upon.

7. The structure set forth in claim 6, said last mentioned meanscomprising pins extending between said plates, the outer sides of saidarms diverging and engaged by said pins.

8. The structure set forth in claim 3 and means for preventing movementof said plate toward 10 said one end of said member when said draw baris moved in an opposite direction.

9. The structure set forth in claim 6 and means preventing movement ofsaid plates toward said one end of said member when said draw bar ismoved in the opposite direction.

10. The structure set forth in claim 1 and means for maintaining saidtight engagement when said draw bar is moved in the opposite adirection.

GERALD L. KUHL.

